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Visualization of DNA changes at the chloroplast microsatellite reporter. (A) Diagram of microsatellite indels with PCR primers. The original out-of-frame construct (OF28) contained seven 4-bp repeats (a). Deletion of one repeat (b) or four repeats (c) or insertion of two repeats (d) made the insertion in frame. (B) Diagram of differential mobility of PCR products.
